The Biblical apocrypha denotes the collection of ancient books, some of which are believed by some to be of doubtful origin, thought to have been written some time between 200 BC and 100 AD.
Copies of the Luther Bible include the intertestamental books between the Old Testament and New Testament; they are termed the "Apocrypha" in Christian denominations having their origins in the Reformation.
The contents page in a complete 80-book King James Bible, listing "The Books of the Old Testament", "The Books called Apocrypha", and "The Books of the New Testament".
Apocrypha are biblical or related writings not forming part of the accepted canon of scripture, some of which might be of doubtful authorship or authenticity. In Christianity, the word apocryphal was
Biblical apocrypha
…Traditional 80-book Protestant Bibles include fourteen books in an intertestamental section between the Old Testament and New Testament called the Apocrypha, deeming these useful for instruction, but non-canonical. Reflecting this view, the lectionaries of the Lutheran Churches and Anglican Communion include…
The apocryphal letter of Sultan Mehmed II to the Pope (Notes et extraits pour servir à l'histoire des croisades au XVe siècle), published by Nicolae Iorga. Series 4: 1453–1476, Paris; Bucharest, 1915, pages 126–127